AD 2002-21-16
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | Various | Airworthiness Directives; Bombardier-Rotax GmbH Type 912 F, 912 S and 914 F Series Reciprocating Engines |
| engine | Rotax | GmbH Type 912 F | Airworthiness Directives; Bombardier-Rotax GmbH Type 912 F, 912 S and 914 F Series Reciprocating Engines |
Unsafe Condition
Inadequate venting of the lubrication system can lead to damage to the engine valve train, resulting in in-flight engine failure and forced landings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the valve train on all engines. Vent the lubrication system on all engines, especially those where the lubrication system has been opened or the propeller has been rotated in reverse.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight.
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Affected Aircraft
Bombardier-Rotax GmbH Type 912 F, 912 S, and 914 F series reciprocating engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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